We're dividing 16660394 by 515 
We're looking to find how many times 515 goes into 16660394.

On to step 1:
1 divided by 515 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 515

On to step 2:
When dividing 16 by 515, we get 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 515

Advancing to step 3:
515 can be fit into 166 0 times, resulting in a remainder of 166.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 166 and we're left with 166.
Fetch the next digit (6) from the dividend, attach it to 166 and continue: 1666 / 515

Let's proceed to step 4:
515 goes into 1666 3 times with a remainder of 121.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 121 after subtracting 1545 from 1666.
Append the next digit (0) from the dividend to 121 and continue with: 1210 / 515

Moving on to step 5:
The number 515 fits into 1210 2 times, leaving a remainder of 180.
The number 2 becomes the next digit in our result. 
Result so far: 32.0
Deduct 1030 from 1210 and we're left with 180.
Append the next digit (3) from the dividend to 180 and continue with: 1803 / 515

Step 6:
The number 515 fits into 1803 3 times, leaving a remainder of 258.
Record the quotient 3 as the next digit in the result. 
Result so far: 323.0
Subtracting 1545 from 1803 leaves us with 258.
Grab the next digit (9) from the dividend, add it to 258, then carry on: 2589 / 515

Step 7:
If we divide 2589 by 515, we get 5 and a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 3235.0
If we take 2575 away from 2589, we end up with 14.
Include the next digit (4) from the dividend after 14, then repeat: 144 / 515

Advancing to step 8:
515 goes into 144 0 times with a remainder of 144.
Use 0 as the next digit of our solution. 
Result so far: 32350.0
If we subtract 0 from 144, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 9:
515 goes into 1440 2 times with a remainder of 410.
The next digit of our result is 2. 
Result so far: 32350.2
Deduct 1030 from 1440 and we're left with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 10:
515 can be fit into 4100 7 times, resulting in a remainder of 495.
Write down 7 as next digit of the result. 
Result so far: 32350.27
If we take 3605 away from 4100, we end up with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Going ahead to step 11:
When dividing 4950 by 515, we get 9 with a remainder of 315.
Put 9 as the next digit of the answer. 
Result so far: 32350.279
The remainder is 315 after subtracting 4635 from 4950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Going ahead to step 12:
515 goes into 3150 6 times with a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 32350.2796
If we subtract 3090 from 3150, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 13:
600 divided by 515 is 1 with a remainder of 85.
Record the quotient 1 as the next digit in the result. 
Result so far: 32350.27961
If we take 515 away from 600, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 14:
If we divide 850 by 515, we get 1 and a remainder of 335.
The number 1 becomes the next digit in our result. 
Result so far: 32350.279611
Subtracting 515 from 850 leaves us with 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

The final outcome is 32350.279611, with a leftover of 3.35e-05.